Gas-motor engine.



P ATENTED JUNE 2, 1908.

' G. B. WATTLES.

GAS MOTOR ENGINE. APPLICATION FILED JUNE 12.1906.

IN YIN TUE' ATZ' an; 2

2 SHEETS-SHEET 2.

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CYRA BISSIJLL \VATTLES, OF PROVIDENCE, RI-IODl-I ISLAND, ASSIGXOR 'IOPROVIDENCE GAS MOTOR COMPANY, OF PROVIDENCE, RHODE ISLAND,(.TJHPOI'LX'IIOX OT: RHODE ISLAND.

GAS-MOTOR ENGINE.

0 all whom it may concern.-

Be it known that I,CYn.-\ BISSELL Wm- TLES, a citizen of the UnitedStates, residing at Providence, inthe county of Providence and State ofRhode Island, have invented a new and useful Improvement in Gas-MotorEngines, of which the following is a specification.-

This invention has reference to an improvement in gas or hydro-carbonengines and more particularly to an improvement in valve controllingmechanism for gas motor engines, reference being had to United StatesLetters Patent No. 509,981, issued to me December 5, 1893, for gas motorengines, to which my present invention is particularly adapted.

In the use of gas engines for automobile or similar purposes, it isrequired at times to instantly cut out or disconnect the engine from therunning mechanism of the car and apply the brakes, when meeting a suddenor unexpected obst uction orfor other causes. This sudden disconnectingof the engine, which may be running at full speed, will allow the engineto race, causing excessivewear on the running. partsand liability ofbreaking I the same, also in the usual form of gas engines having two ormore cylinders, both cylinders are in operation at the same time, whenat times the power of one cylinder is sufiicient to do the workrequired, and if the.

power of one cylinder is cut out through the spark mechanism theoperative parts of the cylinder will continue to run and will use thesame amount of gas as when under working conditions, thus causing anunnecessary loss in friction and expense. This condition also requiresower from the working cylinder to run thei le arts of the cut-out clinder and to overcome tiie compression of t e same,-thus reducing thepower of the working cylinder.

The object of my invention is to improve the construction of a gasengine having an outer annular cylinder, an inner circular cylinder ofsmaller diameter arranged concentric therewith, pistons fitted to thecylinders and intake and exhaust valves fitted to each cylinder, wherebythe exhaust valve of the outer annular cylinder is controlled by agovernor ,which acts automatically to open the exhaust valve when theengine has reached an excessive s eed and to close the same when theengine as returned to its-normal speed.

A further object of my invention is to pro- Specification 0! LettersPatent.

Application filed June 12, 1906.

Patented June 2, 1908.

Serial No. 321,357.

vide the engine with mechanism operated by a foot or other form of leverwhereby the exhaust valve of the outer annular cylinder may be openedand the engine run by the inner circular cylinder and its operativeparts, when the power of 'one cylinder is sufficient to do the workrequired.

A still further object of my invention is to automatically cut out thesparking to the outer annular cylinder when the exhaust valve is openedand to automatically connectthe same when the exhaust valve is released.

My invention consists in the peculiar and novel construction of a gasmotor engine having an outer annular cylinder, an inner circularcylinder of smaller diameter arranged concentric therewith, pistonsfitted to the cylinders and connected to the crank shaft, intake andexhaust valves fitted to each cylinder, a governor, mechanismoperatively connected with the exhaust. valve for the outer annularcylinder and the governor, whereby the exhaust valve is automaticallyopened when the engine reaches an excessive speed and closes when theengine has returned to its normal speed, mechanism adapted to beoperated by a lever and operatively connected to the exhaust valve, andan electric switch operatively connected with the.

exhaust valve mechanism and a source of electric energy (not shown),whereby on tion, as will be more fully set forth hereinafter andclaimed.

Figure 1 is a vertical side view of the engine showing the head,cylinders and pistons in section, the automatic exhaust valve openingmechanism intermediate the valve and the governor in the position itwould assume with the engine sto ped, the foot lever mechanism foropening the exhaust valve in its normal osition, and the electric switchin the close position. Fig. 2 is a detail view part1 in section of theautomatic exhaust valve opening mechanism, showing the same in theposition it would assume in opening the exhaust valve, the foot levervalve opening mechanism in its normal position, and

the electric switch in the open-position, and

I y' ppor d ni he bearings 2 chassis of an automobile, b the frame ofthe engine (which is of the four cycle type) supported on' thechassis, cthecrank shaftsup ported in suitable hearings 'in thefra-me, '11 thecrank disks shown in broken lines in Fig. 1, e the connecting rod, theannular ,exter nal cylinder, 9 the stationary-piston, h the head i theinner trunk cylinder pivotally sew cure to the, connecting rod .andforming;

1o intake-valves; o and'p the mechanically op erated iexhaust valves,-1' the? governor, s a

connecting theautomatic exhaust valve 4 opening mechanism, intermediatethe ex- ;haust=-valve o andthe governor r; t the foot lever exhaust,valve opening mechanism o'p- "-eratively connected with the-exhaustvalveo, and 'v the {electric switch of'niyvimproved gas motel-engine; .i .42o The intake valve lcontrols an intake port wh ch oginsinto, the;annular external cylin-. 'der f. e intake valve e controls an intakeportivhich opens into. theltrunk cylin- {de'r i throu h -the stationarypiston'g. The. 1 exhaust .v 've' 0 controls an exhaust port .yvhichiron; th mules ext r al cylin the'exhaustvalve 1) controls an,

' exhaust rt which leads from the trunkcylinder tkoughfthc stationarypiston g,- 3 igfll; "Thecx haust valves are; operated mech'anically..-bghmechanism con-- with the ongihc s ft c'in the usual vvay;Eachwylinderfhasa spark plug 'conv-"nected by-wvires'to-as'ouroegof-clectnc e'ner a tin er, not she" The actionof eac H n.gylinder s theiwe .ny iqurjcycle ga Jgine, the'e 't losio'ns akin'g"place alternately gig-'thecylin' era-thus giving-aworking stroke 01'eacli' revolution'o fthe'engineu 'j-The govcrn'orfrhus' the usual balls4 4 con- ';nected to the vertical shaft 5 by the pivoted I 6 6 and tothe sleeve 7 hythe links 88.: g'l hejshaft' and sleeve? are Totatably-support th'eibearin'g's'i) 9 o'n the engine framefplndthe shaftis revolved byia tram'ofgear'sv D c asshown i nfii {13: v The. automaticexhaust? val-vea-o' 'e'ning 1 consists of"a rshow-horizontal il lowerend of the' sleeve' of thrmgovempr is;-rotatah l secured; a =vertical'1-2,;piv6tally 's'ecu at itslip'p'er end to the 11; a toggle level; 43--p1votally seto a fixed stud 14,41 "gle' -lever- 15 the slot'l6,and'z-the--L-s' aped end 17 Winch is the slot" 1s ivom11ysfi-Ppori-ed.

g and pivotally secured together joining ends: andz wi-the loweren m1 ry-1-epin2 M 4..

- 22 having the-" cam-shaped'end; rec1pro+ 4 andg25in the annular piston7:, l and-'m'the automatic .30 of. the be Figs. 1 and .2.

I 4 .10.:opetatively connectingthe haft 5 with r theenginesbaft :nul'arcylinder f.

- position to bring-the amend 23.u nder the f t e s smleaez s -26m ingtlie 27 and the set bolt 1 2 8 is ad- .justab ly secured to the bar 22by the set bolt- 28 in imposition-for the pin 27 toent'er thc'= slot 1-8in the' L-shaped end of the toggle leyer; A hell crank lever 29, havingthe "vertical a11n30 and the horizontal arm 3] in thefengl =01" whichjsa slot 32, is pi'votally secured to afi ied stud 33in-a position forthe!" --p n v2-l in-theadjoining ends of the toggle levcrs 13 and 15 toenter the-slot 32 in the end of the arm 31 and a weight 34 securedto thelower end of a- .110d35 which is i \"'otall secured at its u per-end-to'the enr lof' the'arpi crank lever 29, as SlIOWIi Hi The. foot leverexhaust valve *0 eniifg mechanism'lt consiststof'a horizontal a having(Learn-shaped end 37 corresponding" to the cam end .23 onthe'bar2 2 and-ecipjro cally'supported in the bearings-24 and in" 35 :a position tobring the cam end .37 under the stem of theexhaust valve 0, as shown-in2. 'The opposite end of'the bar3'6' 1s pivot allyconnected to a footlever 38, winch is 1 pivotally secured to a fixed jsupportj39'. A,90

coiled springl40 is'connected,to the her 36 and to a fixed su port, thetension of'th'e' "spring holding the min its ,normal position.

The block 26 is adjusted on'the'har 22'so'as to give aclcarance onlostmotion between the cam end .23 and the stem of the exhaust valve 0, thusallovving the engine to .run at its normal speed without opening thevalve.

The electric switch '0 consists of "an insu latingblock 41 secured,tothe chassis a and v having the contact points 42 and 43 and a espring=contact-arm 44 having .the, T.-shaped end45 and secured to thehorizontal bar 22 of the exhaustvalve mechanism 5: in a posi-g 'tion forthe T-shapedendto engage ante 1 I matically withthe contact oints'42 and43 v and close the,circui;t, when t 'e exhaust valve.' mechanism 818.1n.1ts noperative position, as SllOWTl 1n F 1g. 1, or to open vtheOlI'Qlllt when the lexhaust valve mechanism is iii its op'er: 11o ativfeosition, as shownjn- Eig. 2 46 le S from a source of electr c-energy(not shown) to? the contact point 43, ands wire '47:

leads from the contact pointi42 ,tofaspark" plug (not shown) connectedto theputeram 'When.ithe engine increases {or I t A commences to raceby-:the ,disco c mg'of the engine from;the driving mechanismofthecar,-0r when both cylinders are giving an ezgcess of oweror-speedibgiond that-re Petite L sha ed end by fa pin' 19 on ja'- fixedo "stud-"20 an extending through .th

uired to o the work, the b ls of 'the .gov- I ernor are thrownoutwardbythe increased 15 move the bar 22 with the and theswitch v, as shown in2, and auto- 4 so I,

' (i wit-tile outer annular-cylinder .190.

'fi, When the ower of the cut out cylinder is again require themechanismacts automat 'ica'lly in a reverse direction and the valve and ,switchclose through the governor resuming its normal running position.- Theexhaust valveo is also 0 ene'd at any time. required independent of t 1egovernor by moving the foot ever '38 which acting through the bar 36'bring's'thecam end 37 into engagement with the stem Oflthe. exhaustvalve and opens the same. When the ressure of 'thefoot is removed from'the/ ever the tension of the .9 rings moves the leverand bar 36 back toeir normal osition and releases the valve, whichclos'es t rou h thetension of the usual coiled spring on tie stem of the'valve, as shown inFig. 1 A

-I s is evident that the construction of the mechanism intermediate theexhaust valve 0 and the overnor 1' could be varied without material yafi'ecti.='--'r the spirit'of my inven- Having thusdescribed myinvention, I

claim asnew and desire to secure by Letters 11. Agas engine having an0uter annular cylinder, an inner circular cylinder-oi smaller diameterarra ed concentric therewith, pistons fitted to t1e\cylinders, intakeand exhaustvalves connected to each cylinder, agovernor, and mechanismintermediate one of' said valves and thegovernor, whereby on the engineattaining an excessive speed the said valve is opened automaticallyandthe g'power-of the engine reduced to one cylinder. 2', ,A gas-eng1nehaving an outer annular 'e'ylind'er," .-an inner circular cylinder 'ofsmaller diamete'n'. arrangl'adconcentric therewith, pisit e cylinders,intake and exhaustvalves connected to the outer annular cylinder, intakeand. exhaust valves connected to the innercircular cylinder, an electricswitch, a'governor, and mechanism operativelyconnectin' the exhaustvalve on the outer annular cy inder with the governor, whereby on theengine attaining an excessive speed the exhaust valve an 1 switch areopened automatically and the power of the engine reduced. tothe power ofone cylinder, as'described.

3. 'Agasengine having an outer annular .cylinder,-an inner circularcylinder of smaller diameter arran ed concentric therewith, pistfonsfitted to t e cylinders, intake and excylinder, intake and exhaustvalves conhaus't valves connected to the'outer annular nected to theinner circular cylinder, a governor, mechanism operatively connectingthe exhaust valve on the outer annular cyhnder with the governor, andmechanism operatively connecting the exhaust valveon the outerannular chnder with a lever, whereby theexhaust va ve is opened or closedautomatically or by operating the lever, for the purpose, as described.

4. The combination with a gas engine have in an outer annular cylinder,an inner circu ar cylinder of smaller diameter arranged concentrictherewith, pistons fitted to the cylinders, intake and exhaust valvesc'on- 1 nected to each cylinder and a governor, of; an automatic exhaustvalve opening mechanism. com rising a short horizontal arm 11 in whichthe o wer end of the governor sleeve is'rotatably secured, a verticalarm 12 pivotally Srcured at its upper end to the arm '11, a toggle'lever 13 pivotally secured to a fixed stud, a ,1 toggle lever 15 havinthe slot 16, and the L- shaped end 1 7 in whic 1 is the slot 18pivotally su ported at its L-shaped end by apin 19 on g0 a med stud andextending through the :slot,.-,- 16 andpivotally secured together attheir adjoining ends and to the lower end. ot the arm 12 by a pin 2-1, ahorizontal bar 22 having the can] shaped end 23 reciprocally supportedin g5 hearings in a position to bring the cam end, 23 under the stem ofthe exhaust valve on the outer annular cylinder, a block 26'having-the,

pin 27 and a set bolt adjust'ably. securerhto the bar 22 by the set boltina position for-the, 9o; pin 27 to enter'the slot 18 in the L-shapedend of the toggle lever -15,whereby-the;ex-;

haust valve is opened or closediautomatic-ally for the purpose asdescribedrw ,1

5. The combination with. a-gas enginehav-lss ing an outer annularcylinder, an inner eircular cylinder of smaller diameter'arrangejdconcentric therewith, pistons fitted to the cylinders, intakeand exhaust valves cone nected toeach'clyilinder, and a governor',,;0,f100 an automatic ex aust valve opening mech-' anism comprising a shorthorizontal arm. 11,

in which the lowerend of'thegovernor-sleeve3 r I is rotatably secured, avertical a m 12 pivot-.-

ally secured to the arm 11, a toggle lever 13 ivotally secured to afixed stud; a toggle ever 15 having the slot lfiand the, L-shaptsd end17 in which is the slot 18 pivotally sup-,-

ported at its L-shaped end by a pin 19-on. a fixed stud through the slot16 and pivotally secured together at their adjoining ends and to theendof the arm 12 bye .pin 21, a=horivzontal bar 22 having the cam-shaped-end,23.

reciprocally supported in bearings ina -posi-gition to bring the cam end23, under'the, steinof the exhaust valve on the outer annular cylinder,a block 26 havin the pin 27 and a set bolt adjustably secured to the bar22 by the set bolt in a position for the pin'27 toenter the slot 18 inthe L-shaped end of the toggle lever 15, a bell crank lever 29 havingthe vertical arm 30 and the horizontal arm 31 in the end of which is aslot 32 pivotally secured to a fixed stud in aposition for the pin 21 inthe toggle levers to enter the slot 32 in the arm 31, a weight 34secured to a rod 35 which is pivotally secured at its upper end to theend of the arm 30 of the bell crank lever,

a bar 36 having a cam-shaped end 37 reciprocally supported in bearingsin a position to bring the cam end 37 under the stein of the exhaustvalve, a foot lever 38 pivotally secured to the'opposite end of the bar36 and rotatably secured, a vertical arm 12 pivotally to a fixed suport, and a coiled spring 40 attached to t e bar and to a fixed support,whereby the exhaust valve is opened or closed automatically or by thelever 38 for the purpose as described.

, 6. The combination with a gas'engine havii an-outer annular cylinder,an inner ciren ar cylinder of smaller diameter arranged concentrictherewith, pistons fitted to the cylinders, intake and exhaust valvescon; nected to each cylinder and a governor, of an automatic exhaustvalve opening mechanism coniprising a short horizontal arm 11 in whichthe lower end of the governor sleeve is rotatably secured, a verticalarm 12 pivotally secured at its upper end to the arm 11, a toggle lever13 pivotally secured to a fixed stud, a toggle lever 15- having the slot16, and the L-shaped end 17 in which is the slot 18 v pivotallysupported at its L-shaped end by a pin 19 on a fixed stud and extendinthrough theslot 16 and pivotally secured together at their adjoiningends and to'the lower end of the arm" 12 by a in, a horizontal bar 22having the'cam shape end 23 reciprocally supported in bearings in aposition to bring the cam end 23 under the stem of the. exhaust valve onthe outer annular cylinder, a block 26 having the pin 27 arid a set boltad'usta'bly secured to the bar 22 by the set bo t in a position for thepin 27 to enter the slot 18 in the L-shapedend of the toggle lever, 15,and an electric switch having an in-.

sulating block 41 secured to the chassis a and having the contactpoints42 and 43 and a spring contact arm 441havi'ng' the T-shaped end 45 andsecured to the horizontal bar 22 of the exhaust valve mechanism in aposition for the T-shaped end to engage with the com tact points,whereby the exhaust valve 0 is opened or closed ;automatically and the,switch controlled automatically, for the purpose as described.

'7. The combination with a gas engine havi an outer" annular cylinder,aninner circ at cylinder of smaller -'diameter arranged.

concentric therewith, pistons fitted to the cylinders; intake andexhaustvalves conlever' 15, a bell cra vertical arm 30 and the horizontal arm31 in rtlieend of which is a slot 32 pivotally senected to eachcylinder, andqa governor, of

an automatic exhaust valve opening mechanism comprising a shorthorizontal arm 11, iii which the lower end of the governor sleeve issecured to the arm 11, a to gle lever 13 piv0t-"- ally'sec-ured-toafixed stu a toggle lever 15 having the slot 16 and the L-shaped end 17in which is the slot 18 pivotally sup orted at its L-sha ed end by aiu'19 on a I through t e slot 16 an pivotally secured together at theiradjoining ends and to the end of the arm 12'by a pin 21, a horizontalbar 22 having the cam shaped end 23 reciprocally b0 slot 18 in the L-shacured to a fixed stud in a position for the pin 21 in the toggle leversto enter the slot 32 in the arm 3-1, a weight 34 secured. to a rod 35which is pivotally secured at its upper end to a the end of the arm 30of the bell crank lever, a bar 36 having a cam-shaped end 37reciprocally supportedin hearings in a ,position tobring the cam end 37under the stem of the exhaust valve, afoot lever 38 pivotally s e-' to afixed support, and a coiled spring 40",

e bar and to a 'fixedsupport', whereby; the, exhaust valve is openeduorcuredto :the opposite end of the bar 36 and attached to t d end-of thetog le lever 29 having tie ed stud closed automatically or by the lever38, and

an electric switch having a. member-,with' contact points in a-fixedposition anda mei'n her adapted to engage with the contact points andoperatively connected with the exhaust valve openingmechanism, wherebythe exhaust valve is o ned or closed automatically and the switchcontrolled automatically, for the g, ose as-described. In testimony, wereof I have signed my name to this specification in the two subscrib'witnesses. C- A BISSELL-WATTLES. Witnesses:- I a AIME. Haena'rr,

Jr A. MILLER.

presence of

